Biology 10 Chapter 15 MCQs Test 1

In Biology 10 Chapter 15 MCQs Test 1, there are 15 MCQs. A total of 5 MCQs Tests are available from Chapter 15 of FBISE Class 10 Biology Book. We have prepared 75 multiple-choice questions, which are divided into five MCQs Tests.

Practice
MCQs Test No 1

152

Class 10 Biology
Chapter 15
Practice MCQs Test No 1

1 / 15

An organism's expressed physical trait, such as seed colour or pod shape, is called its:

Karyotype

Physical type

Phenotype

Genotype

2 / 15

How many pairs of homologous chromosomes are there in human body cell?

22

46

23

40

3 / 15

In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod colour is dominant, the resulting offsprings (F1 generation) will be:

1/4 green, 3/4 yellow

All yellow

1/4 yellow, 3/4 green

All green

4 / 15

Transmisslon of characteristics front parents to offsprings is called as;

Mutation

Inheritance

Replication

Co-dominance

5 / 15

Chromosomes carry units of Inheritance called as;

DNA

None of these

genes

Chromatin

6 / 15

A purple-flowered pea plant has the genotype PP. Which of the following statements about this plant is FALSE?

Its phenotype will be white flowers

It has a homozygous dominant genotype

When bred to a white-flowered plant, all offspring will be purple flowered

All the gametes produced will have the same flower colour allele

7 / 15

DNA wraps around histone protein and forms rounded structures called as;

Lysosomes

Ribosomes

mRNA

Nucleosomes

8 / 15

Branch of biology that deals with the study of inheritance Is called as;

Natural selection

Artificial selection

Genetics

Histology

9 / 15

Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According to Darwin, the offspring that are most likely to survive are those that;

Are largest and most aggressive

Are born first and grow fastest

Are best adapted to the environment

Have no natural predators

10 / 15

An organism has two different alleles for a single trait. Its genotype Is said to be;

Homologous

Heterozygous

Hemizygous

Homozygous

11 / 15

How many genetically different kinds of gametes an individual with genotype AAbb can produce?

8

1

2

4

12 / 15

Mendel's primary contribution to our understanding of inheritance was;

The discovery of alleles

The idea that genes are found on chromosomes

Determining that informations contained in DNA are for protein synthesis

Explanation of the patterns of inheritance

13 / 15

Genes contain Instructions for the synthesis of;

Vitamins

Fats

Carbohydrates

Proteins

14 / 15

Chromatin is made up of:

None of these

DNA

DNA+Protein

Proteins

15 / 15

Which of the following statements regarding genes is FALSE?

A gene contains information for the production of a protein

Genes are located on chromosomes

Each cell contains a single copy of every gene

Genes consist of a long sequence of DNA

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